431 Series - 0603 Very Fast-Acting Thin-Film Fuse

431
Roll Over to Zoom
Disclaimer Notice

Littelfuse products are not designed for, and shall not be used for, any purpose (including, without limitation, automotive, military, aerospace, medical, life-saving, life-sustaining or nuclear facility applications, devices intended for surgical implant into the body, or any other application in which the failure or lack of desired operation of the product may result in personal injury, death, or property damage) other than those expressly set forth in applicable Littelfuse product documentation. Warranties granted by Littelfuse shall be deemed void for products used for any purpose not expressly set forth in applicable Littelfuse documentation. Littelfuse shall not be liable for any claims or damages arising out of products used in applications not expressly intended by Littelfuse as set forth in applicable Littelfuse documentation. The sale and use of Littelfuse products is subject to Littelfuse Terms and Conditions of Sale, unless otherwise agreed by Littelfuse. "Littelfuse" includes Littelfuse, Inc., and all of its affiliate entities.

This product is obsolete. For new designs please use the 434 or 467 Series products.

Access specifications, certifications, check availability and order parts below

Catalog #VDC (V)VAC (V)Nominal Melting I2T (A2sec)Resistance
(Ω)
BodyMin Operating Temp (°C)Max Operating Temp (°C)OpeningCompare
431.250
Obsolete: 2002 -12-30
Replaced By: 0467.250NR0434.250
32320.0030.375Epoxy Substrate-5590Very Fast-Acting (FF)
431.375
Obsolete: 2002 -12-30
Replaced By: 0467.375NR0434.375
32320.0050.265Epoxy Substrate-5590Very Fast-Acting (FF)
431.500
Obsolete: 2002 -12-30
Replaced By: 0467.500NR0434.500
32320.00870.193Epoxy Substrate-5590Very Fast-Acting (FF)
431.750
Obsolete: 2002 -12-30
Replaced By: 0467.750NR0434.750
32320.01710.114Epoxy Substrate-5590Very Fast-Acting (FF)
431001.
Obsolete: 2002 -12-30
Replaced By: 0467001.NR0434001.
32320.0210.072Epoxy Substrate-5590Very Fast-Acting (FF)
431002.
Obsolete: 2002 -12-30
Replaced By: 0467002.NR0434002.
32320.1040.036Epoxy Substrate-5590Very Fast-Acting (FF)
431003.
Obsolete: 2002 -12-30
Replaced By: 0467003.NR0434003.
32320.1980.023Epoxy Substrate-5590Very Fast-Acting (FF)
431004.
Obsolete: 2002 -12-30
Replaced By: 0467004.NR0434004.
32320.3520.017Epoxy Substrate-5590Very Fast-Acting (FF)
431005.
Obsolete: 2002 -12-30
Replaced By: 0467005.NR0434005.
32321.2970.013Epoxy Substrate-5590Very Fast-Acting (FF)
43101.5
Obsolete: 2002 -12-30
Replaced By: 046701.5NR043401.5
32320.05260.048Epoxy Substrate-5590Very Fast-Acting (FF)
43102.5
Obsolete: 2002 -12-30
Replaced By: 046702.5NR043402.5
32320.1750.028Epoxy Substrate-5590Very Fast-Acting (FF)
43103.5
Obsolete: 2002 -12-30
Replaced By: 046703.5NR043403.5
32320.2650.019Epoxy Substrate-5590Very Fast-Acting (FF)
To request product environmental information, please complete the Product Environmental Information Request Form.

431icon Fuse 431 Datasheet

Surface Mount Fuses 431 Datasheet...

431_obs_lettericon 431 Series Notice of Obsoletion

431 Series Time Curve Data

pdf icon Fuse Accessories Selection Guide

A quick reference guide to selecting holders blocks and clips for fuse applications...

pdf icon Fuse Selection Guide

A quick reference guide to selecting fuses for electronic applications...

pdf icon Product Selection Guide

Electronics Circuit Protection Product Selection Guide - A guide to selecting Littelfuse circuit protection components for electronic applications...

pdf icon Circuit Protection Technology Application Matrix

Littelfuse is the world leader in the design and manufacturing of fuses for the automotive, industrial, handheld, computer and telecom markets...

Littelfuse_Phils_ISO9001_102407icon 2022-06-17_ISO 9001 2015_LF Phils

PhilsISO14001Certificateicon 2022-04-19_ISO 14001-2015_LF Phils